Ahab! is a simple template for producing Kindle specific .mobi files.
Available on github.com/cmod/ahab/.

At its core, redis-faina uses the Redis MONITOR command, which echoes every single command (with arguments) sent to a Redis instance. It parses these entries, and aggregates stats on the most commonly-hit keys, the queries that took up the most amount of time, and the most common key prefixes as well. Using it, we’ve cut the number of requests on one of our systems from 23,000 requests per second to ~11,000, by identifying places where we could batch-fetch information or eliminate extraneous commands.

Flotr2 is a library for drawing HTML5 charts and graphs. It is a branch of flotr which removes the Prototype dependency and includes many improvements.

Ninja Blocks are powerful little computers for sensing and controlling things in your physical environment. Ninja Cloud is a web service that lets you connect your online life to your real world stuff.

Neat looking file-based CMS.

Simplenote's cloud data storage service now available for us in iOS and web apps.

Breadcrumbs helper for rails

JSON API <-> NSObject in one line. Powered by RubyMotion and BubbleWrap.

Upload stuff to Heroku that isn't in Git.

Simple RubyMotion example project to wrap a full-screen HTML5 app into an iOS app.

Monologue is a basic blogging engine. It is a Rails mountable engine.

Includes the preload_app setting and the various before_fork/after_fork bits that are required for it to work.

    

A collection of wrappers used to wrap CocoaTouch code and provide more Ruby like APIs.

Effortless asynchronous application development for the modern web and enterprise

The goal of krypt is to provide a platform- and library-independent cryptography API for the Ruby language (www.ruby-lang.org). It can be used with all C(++)-based Ruby implementations as well as JRuby.

The major part of krypt is implemented in Ruby, and it additionally offers the possibility to integrate OS- or language-specific native libraries to implement cryptographic primitives. krypt aims at offering performance while still improving the security and features of the Ruby cryptography infrastructure. Its motto is to keep all the good parts of what exists today and to improve the parts that need improvement. It offers an idiomatic, modern API that cherry-picks the best features of other popular libraries and also offers new features that are not offered by others today.

Kalendae is an attempt to do something that nobody has yet been able to do: make a date picker that doesn't suck.

If you're doing startup stuff, you have to read these notes from Peter Thiel's startup class

Ruby client gem for the GitHub v3 API

A plugin for versioning Rails 3 based RESTful APIs. Versionist supports three versioning strategies out of the box:

Cashier: Tag Based Caching for Rails. Manage your cache keys with tags, forget about keys!